well my car has thrown this code a few times in the past few months and ive just kept disconnecting the battery or hooking it up to a scanner and clearing it. i havent had much time lately to get too deep into finding a solution, so i was wondering what might be some common problems that would cause this to go off. i beleive its the drivers side O2 heater circuit. car has LTs with 24" O2 extensions in the front, stock(or at least what came in the car) O2 sensors and O2 simms on the rear with an Offroad Y pipe. car has been tuned for rear O2 deletion anyways, cause i drove it with simms a few montsh before i got it tuned, but it hasnt given me trouble for the last year since i did the header job, but recently like last 2 months it throws this code randomly and will go away for a while. car sits outside and its pretty cold out right now, so idk if that has anything to do with it. i also drive in considerable amounts of snow. any thoughts or maybe some "duh, check this" ideas. TIA

 

The code can be a result of a bad sensor or the wiring itself. Try swapping the front 02 sensors from bank to bank and see if the intermittent code follows. If not, then I would investigate the wiring.

 

yea i was thinking about swapping over the O2s or the extensions(would they cause a problem like this?) and seeing what happens. it kinda sucks tho, because if i clear it, it will prolly take a week or so to get it back on.